[PATCH 3/5] mmc: pwrseq: Document optional clock for the simple power sequence
From: Javier Martinez Canillas <hidden>
Date: 2015-01-28 20:47:45
Also in:
linux-devicetree, linux-mmc, linux-samsung-soc, lkml
Subsystem:
multimedia card (mmc), secure digital (sd) and sdio subsystem, open firmware and flattened device tree bindings, the rest · Maintainers:
Ulf Hansson, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Some WLAN chips attached to a SDIO interface, need an external clock to be operational. Since this is very common, extend the simple MMC power sequence DT binding to support an optional clock. Signed-off-by: Javier Martinez Canillas <redacted> --- Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt
index 9a77deb164c7..6b5c10d1144c 100644
--- a/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt
+++ b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt@@ -11,6 +11,10 @@ Optional properties: - reset-gpios : contains a list of GPIO specifiers. The reset GPIOs are asserted at initialization and prior we start the power up procedure of the card. Will be de-asserted right after the power has been provided to the card. +- clocks : Must contain an entry for the entry in clock-names. + See ../clocks/clock-bindings.txt for details. +- clock-names : Must include the following entry: + "ext_clock" (External clock provided to the card). Example:
--
2.1.3